Apparatus and method for distributing a tarp over a cargo on a truck load bed

Abstract

A tarp distributing apparatus includes a tarp guide device held in an immobile condition adjacent to and extending upright to above a rear location on a truck load bed so as to establish the height to which a tarp can be moved to above and over the rear of a cargo on the truck load bed, a tarp draught device mounted in a mobile condition adjacent to and extending upright to above the truck load bed forwardly of the tarp guide device so as to undergo movement relative thereto and along the truck load bed for engaging and pulling the tarp relative to the tarp guide device forwardly over the cargo, and an actuation mechanism configured to manipulate and move the tarp draught device relative to the tarp guide device and the cargo so as to accomplish distributing the tarp over at least a portion of the cargo.

What is claimed is: 
     
       1. A tarp distributing apparatus, comprising:
 a tarp guide device mounted adjacent to and extending upright to above a rear location on a truck load bed so as to establish the height to which a tarp can be moved relative to the rear location on the truck load bed to above and over the rear of a cargo on the truck load bed; 
 a tarp draught device mounted in a mobile condition adjacent to and extending upright to above the truck load bed forwardly of said tarp guide device and between the rear location on the truck load bed and a front location on the truck load bed opposite from the rear location so as to undergo movement relative to said tarp guide device and along the truck load bed for engaging and pulling the tarp relative to said tarp guide device and forwardly over the cargo; and 
 an actuation mechanism mounted adjacent to the front location on the truck load bed and coupled to the tarp draught device, said actuation mechanism being operable to move said tarp draught device from adjacent said tarp guide device at the rear location on the truck load bed to adjacent the front location on the truck load bed relative to said tarp guide device and the cargo so as to accomplish distributing the tarp at least partially over the cargo. 
 
     
     
       2. The apparatus of  claim 1  wherein said tarp guide device includes an upper cross assembly establishing the height to which the tarp can be moved, relative to the rear location on the truck load bed, to above and over the rear of the cargo. 
     
     
       3. The apparatus of  claim 2  wherein said upper cross assembly includes an elongated inner bar and an outer roller extending over and rotatable about said inner bar so as to rotate as said outer roller guides the tarp to above and over the rear of the cargo. 
     
     
       4. The apparatus of  claim 3  wherein said tarp guide device also includes a pair of upright support assemblies each having a lower tubular structure and an upper tubular member supported by said lower tubular structure, said elongated inner bar of said upper cross assembly extending between and fixedly connected at opposite ends to upper end portions of said upper tubular members of said upright support assemblies, said upper end portions of said upper tubular members also extending above said upper cross assembly so as to assist in keeping the tarp from falling off said upper cross assembly as the tarp is guided above and over the rear of the cargo. 
     
     
       5. The apparatus of  claim 4  wherein each of said upright support assemblies also has a carriage mounted to one of a pair of channels defined along each of a pair of opposite side edges of the truck load bed, each of said carriages supporting said lower tubular structure of a respective one of said upright support assemblies. 
     
     
       6. The apparatus of  claim 5  wherein each of said carriages includes an elongated main member and a pair of wheels each mounted on a corresponding one of a pair of axles attached to one of a pair of opposite ends of said elongated main member and extending laterally therefrom. 
     
     
       7. The apparatus of  claim 5  wherein said lower tubular structure of each said upright support assembly includes:
 a lower tubular member fixedly attached to and extending upwardly from one of said carriages and being aligned and telescopably interfitted with a corresponding one of said upper tubular members; and 
 a brace extending angularly between and interconnecting said lower tubular member and said carriage. 
 
     
     
       8. The apparatus of  claim 1  wherein said tarp draught device includes an upper cross bar having a plurality of elements attached thereon being spaced apart from one another and configured to engage with a leading end of the tarp for pulling the tarp relative to said tarp guide device and forwardly over the cargo. 
     
     
       9. The apparatus of  claim 6  wherein said tarp draught device also includes a pair of elongated posts, said upper cross bar of said draught device extending between and interconnecting at opposite ends with corresponding upper ends of said elongated posts. 
     
     
       10. The apparatus of  claim 7  wherein said tarp draught device further includes a pair of carriages each being mounted to one of said pair of channels defined along the opposite side edges of the truck load bed, each said elongated post of said draught device being pivotally mounted at a lower end to one of said carriages. 
     
     
       11. The apparatus of  claim 10  wherein each of said carriages includes an elongated main member and a pair of wheels each mounted on a corresponding one of a pair of axles attached to one of a pair of opposite ends of said elongated main member and extending laterally therefrom, each of said wheels being disposed in one of the channels along the opposite side edges of the truck load bed. 
     
     
       12. The apparatus of  claim 10  further comprising a pair of actuator each mounted to said elongated main member of one of said carriages of said tarp draught device and drivingly coupled to said lower end of one of said elongated posts of said tarp draught device for causing said elongated posts of said tarp draught device to undergo movement between upright positions and angularly displaced positions toward and away from said tarp guide device and said upright positions. 
     
     
       13. A tarp distributing apparatus, comprising:
 a tarp guide device mounted in an immobile condition adjacent to and extending upright to above a rear location on a truck load bed so as to establish the height to which a tarp can be moved relative to the rear location on the truck load bed to above and over the rear of a cargo on the truck load bed, said tarp guide device comprising an upper cross assembly establishing the height to which the tarp can be moved, said upper cross assembly including an elongated inner bar and an outer roller extending over and rotatable about said inner bar so as to rotate as said outer roller guides the tarp to above and over the rear of the cargo; 
 a tarp draught device mounted in a mobile condition adjacent to and extending upright to above the truck load bed forwardly of said tarp guide device and between the rear location on the truck load bed and a front location on the truck load bed opposite from the rear location so as to undergo movement relative to said tarp guide device and along the truck load bed, said tarp draught device comprising an upper cross bar having a plurality of elements attached thereon being spaced apart from one another and configured to engage with a leading end of the tarp for pulling the tarp, as said upper cross bar undergoes movement relative to said tarp guide device, forwardly over the cargo; and 
 an actuation mechanism mounted adjacent to the front location on the truck load bed and coupled to said tarp draught device, said actuation mechanism being operable to move said tarp draught device from adjacent said tarp guide device at the rear location on the truck load bed to adjacent the front location on the truck load bed relative to said tarp guide device and the cargo so as to accomplish distributing the tarp at least partially over the cargo. 
 
     
     
       14. The apparatus of  claim 13  wherein said tarp guide device also includes a pair of upright support assemblies each having a lower tubular structure and an upper tubular member supported by said lower tubular structure, said elongated inner bar of said upper cross assembly extending between and fixedly connected at opposite ends to upper end portions of said upper tubular members of said upright support assemblies, said upper end portions of said upper tubular members also extending above said upper cross assembly so as to assist in keeping the tarp from falling off said upper cross assembly as the tarp is guided above and over the rear of the cargo. 
     
     
       15. The apparatus of  claim 14  wherein:
 each of said upright support assemblies also has a carriage mounted to one of a pair of channels defined along each of a pair of opposite side edges of the truck load bed, each of said carriages supporting said lower tubular structure of a respective one of said upright support assemblies; 
 each of said carriages including an elongated main member and a pair of wheels each mounted on a corresponding one of a pair of axles attached to one of a pair of opposite ends of said elongated main member and extending laterally therefrom; and 
 said lower tubular structure of said each of said upright support assemblies including a lower tubular member fixedly attached to and extending upwardly from one of said carriages and being aligned and telescopably interfitted with said upper tubular member of a corresponding one of said upright support assemblies, and a brace extending angularly between and interconnecting said lower tubular member and said carriage. 
 
     
     
       16. The apparatus of  claim 15  wherein said tarp draught device also comprises a pair of elongated posts, said upper cross bar extends between and interconnects at opposite ends with corresponding upper ends of said elongated posts. 
     
     
       17. The apparatus of  claim 16  wherein said tarp draught device further comprises a pair of carriages each being mounted to one of said pair of channels defined along said opposite side edges of the truck load bed, each of said elongated posts being pivotally mounted at a lower end to one of said carriages, each of said carriages including an elongated main member and a pair of wheels each mounted on a corresponding one of a pair of axles attached to one of a pair of opposite ends of said elongated main member and extending laterally therefrom, each of said wheels being disposed in one of said channels along the opposite side edges of the truck load bed. 
     
     
       18. The apparatus of  claim 17  further comprising a pair of actuators each mounted to one of said elongated main members of said carriages of said tarp draught device and drivingly coupled to said lower end of one of said elongated posts of said tarp draught device for causing said elongated posts of said tarp draught device to undergo movement between upright positions and angularly displaced positions toward and away from said tarp guide device and said upright position.